fvaleri commented on code in PR #22384:
URL: https://github.com/apache/kafka/pull/22384#discussion_r3324220555
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metadata/src/main/java/org/apache/kafka/metadata/storage/Formatter.java:
##########
@@ -236,6 +236,17 @@ public void run() throws Exception {
if (clusterId == null) {
throw new FormatterException("You must specify the cluster id.");
}
+ try {
+ if (clusterId.contains("=")) {
+ throw new FormatterException("The specified cluster id, " +
clusterId + " contains padding and is invalid");
+ }
+ Uuid uuid = Uuid.fromString(clusterId);
+ if (Uuid.RESERVED.contains(uuid)) {
+ throw new FormatterException("The specified cluster id, " +
clusterId + " is reserved");
+ }
Review Comment:
Good point. Let's add a comment about this for future reference.
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